BMW: Ertefa Show Car 2014 Project

ertefa-bmw-max-ultra-auto

A speaker set for music lovers.

A speaker set for music lovers.

Holes being cut to fit new 6' speakers in the doors

Holes being cut to fit new 6′ speakers in the doors

Tweeter mount being made

Tweeter mount being made

Beryllium tweeter installed in the middle of the door.

Beryllium tweeter installed in the middle of the door.

ultra-auto-sound-bmw-e60-au

Two tone panel made for the new 6" drivers. The speaker now sits on a flat surface and does not touch any metal.

Two tone panel made for the new 6″ drivers. The speaker now sits on a flat surface and does not touch any metal.

crossovers visible in trunk layout

crossovers visible in trunk layout

JL Audio 10W6v3 H.O.

JL Audio 10W6v3 H.O.